Power-take-off device



v Aug.

.LM CUSTENBORDER POWER TAKE-OFF DEVICE Find Aug. 5,1925

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`25 44 o o o. 1140 2 31 rio/771 M Cas i627 arde/1 Patented Aug. 16, 1927.

' muren STATES PAIE-NIOFFICE.

JOHN M. CUSTENBQRDER, OF MACKINAW, ILLI'NQISV, ASSIGNOR T0 THE BEVO MANU- FACTUBING co., or nasrriionm, ILIaIIIeIs,

n cnrQmi'rIoN or ILLINOIS.

roWIiR-rAKE-oijr nEvIon Application filed August a device in the form ofA an attachment which.

may be readily mounted upon tractors such as the Fordson, and which will transmit the power of the engine directly to the mecha nism of the binder or other trailing implements.

Another object of my invention is the provision of an over-load clutch whereby when' the driving load becomes greater than the load at which the device is set, the overload clutch will come into operation to r'e- 90 lieve the mechanism of undue strains..

Another object of my invention is the provision of mechanism whereby, when the over-load clutch is called into play, the main clutch of the tractor is disengaged.

Another obj ect of my invention is the provision of means for disengaging the overload clutch without causing the disengagef ment of the main clutch of the tractor.

Other objects of my invention will be ap- 'H parent from the specification.

rlhe novelty of my invention will be hereinafter more fully set forth and specifically pointed out in the claims.

In the accompanying drawing:

Fig. 1 is a side elevation of the rear portion ofa tractor such as the Fordson and showing my device attached in operative position..

Fig. 2

is a plan view partly in section of V the devicev of Fig'. l

Fig. 3 is a section end view of the portion ofthe mechanism of Fig. 2, the section being taken just to the right of the large bevel gear.

The same numerals of reference are used to indicate identical parts in all the iigur'es.

As illustrating one form of device embodying my invention, though without limiting myself to the precise details of construction shown, or the arrangement of the parts,`

but availing myself of all changes and modifications which may be made 'without the scope of the appended claims, I have shown a housing 1 provided with a bolting flange 3, 192.57. Serial- Np. 47,7124.

2 by means of which the device is `attached to the tractor housing 300 at the place provided for the usual belt drive pulley. Projecting beyondv the bolting flange 2 is a cylindrical portion 3, atthe end of which a bevel gear 4L is mounted, this gear fastened to the shaft 5 which is mounted in antifriction bearings 6 and 7. The gear 4; is positioned tomesh witha gear which is a part of the tractor mechanism and is ordinarily provided for the purpose of driving the belt pulley i A At the opposite end of the shaft 5 a bevel pinion 8 is mounted.y andY this pinion meshes with and drives the ring-gear 9, the latter being mounted on a hubl 10 which is mounted free to turn on the'shaft 11. rlhe hub 10 carries a series of angularly arranged pro,- jections 12 which' form a part of the overload clutch,y and a spiral cam 13 which lies just outside of theY projections` 12. i A hub 14, which carries a series of projections 15 mating with the projections 12 is mounted on the shaft 11, lfre'e tov slidey ther'eon though connectedto rotate the shaft by means of a, feather key 16, and this hub is normally held against the hub 10 by ymeans. of a spring 17 which is adjustable by means of the nut 1S and lock nut 19. The hub 10 isconfined on the shaft 11 between a collar 20. which is integral with the shaft and a second collar 21 which is preferably pinned to the shaft as shown more clearly in F ig.

The hub 14 carries a iiange 22 which performs severalfunctions as will be described. A rod 2S is mounted in the case 1 by means of bearings 24 and 25,' and this rod carries a pivot pin 26 upon which a finger 27 and a trigger 28 are mounted, these two parts being connected together by an eXpansion spring 29. The lever 30 is carried by the end of the rod 23 and is connected at its lower end by links 31 to a lug on the case 1 and at its upper end by a link 32v4 to a clutch pedal 33 as shown in 31. y

A vertical sh ft is mounted in the upper portion of thev case 1 or in a cover therefor, and this shaft carries upon its lewer end a bell crank 35', one arm of which lies adjacent the flange`22 yof theY hub 14:, the other arm carrying a rod 36 which 4passes through, an 'uP-Standing bess. .011. th lieer 27, the rod 3,6; carrying a pin 37, shown more clearly in Fig. 3.

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rlie shaft 11 is mounted in an anti-friction bearing mounted in the housing 1 and a second bearing 3Q mounted in a head Ll() which is attached to the housing 1, the shaft 11 extending rearwardly as shown more clearly in Fig. 1, and is supported by a bearing 11 suitably attached to the tractor, this shaft carrying at, its rear end, a universal joint 12 by means of which the tumbling shaft L13, which extends to the trailing implement, is driven.

Any suitable draw-bar or tongue 4t serves as a means of movingl the trailing implement forward as the tractor advances.

The upper end of the shaft 3e carries a hand lever 45 which may cooperate with a quadrant 116 mounted on the upper end of a tube t7 through which the shaft 3st pass-es, the tube and quadrant being shown iu Fig. 1.

The operation of the device is as follows, assuming the parts all mounted and connect ed shown in Fig. 1, and that the tumbling shaft /13 extends to a trailing implement of which the tongue tt forms a part.

. After having connected the parts, and upon proceeding to the field for operation, the operator moves the hand lever 45 to cause the hub 111 to slide along the shaft 11 and compress the spring 17 to disengage the projections 12 and 15 whereupon the gearing may all operate, though the shaft 11 will remain stationary.

After the shaft 3-t is rotated as above det scribed by he lever 45, the rod 36 .is moyed to bring the pin 37 against the linger 27 to hold this finger in the position in which it is shown in Figs. 2 and 3, the trigger 23 meanwhile being moved by the fla-nge 22 and expanding the spring TLlpon arrival at the position for operation of the mechanism of the trailing implements, the hand lever 15 is released whereupon the spring 17 moves the hub 1st and projection to move into engaged position with the projection 12 of the hub 10, in which position the parts are now as shown in Fig. 1 and connection is established between the ring-gear 9 and the shaft 11. lf during the operation of the mechanism, an over-load condition should occur, such for instance as advancing the cutter bar of a binder to a point where the knives would strike a projecting root of a tree or any other obstruction, the increased load on the shaft 11 and the angular arrangement of the projections 12 and 15 would cause the hub 141 to slide along the shaft 11 and permit the projections to pass one another thus forming an over-load clutch. As the flange 22 moves back and forth along the shaft 11, the trigger 28 is moved to swingy the linger 27 into the path of travel of the cam 13, and as soon as this cam reaches a position where the finger 27 can swing toward the shaft 11,

resaca@ kthe cam 13 comes in contact with the end of the finger 27 and moves the rod 23 in a direction away from the gear 9, thus moving the lever 30 and, through the link 32 disengaging the tractor clutch through the medium of the clutch pedal 33, thus stopping the forward movement of the tractor and the rotation of the gearing which drives the shaft 11.

After the obstruction has been removed, the operator depresses the clutch pedal 33 thereby still further moving the rod 23 and bringing the trigger 28 into contact with the housing 1 to restore the trigger 23 and the finger 27 to the position these parts occupy with relation to the rod 23 as shown in lr ig. 2 whereupon the clutch pedal 33 may now be permitted to rise to cause the reengagement of the tractor clutch.

lt will thus be seen that l have provided a device in which the power of the engine of the tractor may be employed to drive the mechanism of a trailing implement under conditions wherein an over-load clutch is provided to save the mechanism of the trailimplement under exceptional conditions and in addition that when these exceptional conditions occur and the over-load clutch is brought into operation, the main clutch of the tractor is disengaged to stop not only the application of the power of the engine to the mechanism of the tractor implements, but also to stop the advance of the tractor as well.

It is also to be noted that after the device has operated to disengage the main clutch of the tractor, all that is necessary for the' operator to do to reset the mechanism is to fully depress' the clutch pedal of the tractor and then permit it to resume its engaged position.

Having thus fully described my invention, l claim:

1. In a power takeoff the combination of a housing arranged to be mounted on a tractor, a drive shaft in the housing and providedv with a gear for engagement with a part of the trac-tor gearing behind the main clutch of the tractor, power take-off gearing driven by the shaft, a power takeoff shaft driven by the latter gearing, an over-load clutch between the latter gearing and the power take-off shaft and means controlled by the over-load clutch for disengaging the tractor clutch when the power takeolf shaft is over-loaded.

2. ln a power take-off the combination of a housing arranged to be mounted on a tractor, a drive shaft mounted therein and provided with al gearing for engagement with a gear of the tractor, power take-off gearing driven by the shaft, a power take-off shaft driven by the latter gearing, an over`-load clutch between the latter gearing and the power take-off shaft, a cam operated by the il d a housing arranged to be mounted'on a tracf tor, a drive sha-ft mounted in the housing and provided with gearing to engage the gearing of the tractor by the main clutch of the tractor', power take-off gearing in the '7 housing and driven by the latter shaft, a

power take-off shaft mounted in the housing, over-load clutch jaws' carried by the power take-ofi2 gearing, and a yieldingooverload clutch member mounted on the power take-off shaft and cooperating withk the over-load clutch jaws of the gearing.

4. In a power take-od' the combination of a housing arranged to be mounted on a tractor, a drive shaft mounted in the housing and provided with gearing to engage the gearing of the tractor by the main clutch of the tractor, power take-off gearing in the housing and driven by the latter shaft, aA

power take-off shaft mounted in the housing, over-load clutch jaws carried by the power take-off gearing, and a yielding over-- load clutch member mounted on the power take-off shaft and cooperating with the over-load clutch jaws of the gearing and means for adjusting the over-load clutch to the load.

5. In a power take-off the combination of a power take-oil shaft, a driving gear loosely mounted on the shaft, meansfor driving the driving gear from the gearing of a tractor back of the main clutch thereof, an overload clutch between the power take-oit shaft and its drive gear, connections between the driving gear and the main clutch of the tractor whereby when the over-load clutch operates to relieve an over-load the main clutch of the tractor is disengaged, and means for rendering these connections inop erative and for disengaging the over-load clutch.

JOHN M; cUsTENBoRDER. 

